Closed
Description
auto-reduced (treereduce-rust):
fn size_of_val<'a>(x: &mut ()) -> impl Iterator<Item = impl Sized> + use<> {
x
}
original:
fn lifetime_in_bounds<'a>(x: &'tr ()) -> impl Into<&'a ()> + use<> { x }
//~^ ERROR `impl Trait` captures lifetime parameter, but it is not mentioned in `use<...>` precise captures list
fn size_of_val<'a>(x: &mut ()) -> impl Iterator<Item = impl Sized> + use<> { x }
//~^ ERROR hidden type for `impl Sized` captures lifetime that does not appear in bounds
fn main() {
iter_raw -= 1;
}Version information
rustc 1.84.0-nightly (9ce3675b4 2024-10-15)
binary: rustc
commit-hash: 9ce3675b438aae22ef0c6147cde2003a418ab722
commit-date: 2024-10-15
host: x86_64-unknown-linux-gnu
release: 1.84.0-nightly
LLVM version: 19.1.1
Command:
/home/matthias/.rustup/toolchains/master/bin/rustc -Zunstable-options --edition=2024
Program output
error[E0601]: `main` function not found in crate `mvce`
--> /tmp/icemaker_global_tempdir.jJVes92ppekh/rustc_testrunner_tmpdir_reporting.5Srfjlvyeixq/mvce.rs:3:2
|
3 | }
| ^ consider adding a `main` function to `/tmp/icemaker_global_tempdir.jJVes92ppekh/rustc_testrunner_tmpdir_reporting.5Srfjlvyeixq/mvce.rs`
error: `impl Trait` captures lifetime parameter, but it is not mentioned in `use<...>` precise captures list
--> /tmp/icemaker_global_tempdir.jJVes92ppekh/rustc_testrunner_tmpdir_reporting.5Srfjlvyeixq/mvce.rs:1:35
|
1 | fn size_of_val<'a>(x: &mut ()) -> impl Iterator<Item = impl Sized> + use<> {
| -- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ lifetime captured due to being mentioned in the bounds of the `impl Trait`
| |
| this lifetime parameter is captured
error: internal compiler error: compiler/rustc_hir_typeck/src/typeck_root_ctxt.rs:106:13: escaping bound vars in predicate Obligation(predicate=Binder { value: ProjectionPredicate(AliasTerm { args: [?0t], def_id: DefId(2:8783 ~ core[fdc7]::iter::traits::iterator::Iterator::Item), .. }, Term::Ty(Alias(Opaque, AliasTy { args: ['a/#0, '^2_0.Named(DefId(0:7 ~ mvce[11b1]::size_of_val::'_), "'_"), 'a/#0], def_id: DefId(0:6 ~ mvce[11b1]::size_of_val::{opaque#0}::{opaque#0}), .. }))), bound_vars: [] }, depth=0)
--> /tmp/icemaker_global_tempdir.jJVes92ppekh/rustc_testrunner_tmpdir_reporting.5Srfjlvyeixq/mvce.rs:1:35
|
1 | fn size_of_val<'a>(x: &mut ()) -> impl Iterator<Item = impl Sized> + use<> {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
thread 'rustc' panicked at compiler/rustc_hir_typeck/src/typeck_root_ctxt.rs:106:13:
Box<dyn Any>
stack backtrace:
0: 0x7382d2c76daa - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h525ca73b44ff3961
1: 0x7382d340368a - core::fmt::write::h4e0877406968c391
2: 0x7382d47a9111 - std::io::Write::write_fmt::h2bd0eeb556cd4584
3: 0x7382d2c76c02 - std::sys::backtrace::BacktraceLock::print::h43c0f0423e8dc1a8
4: 0x7382d2c790e6 - std::panicking::default_hook::{{closure}}::h15d7535f314f3156
5: 0x7382d2c78f30 - std::panicking::default_hook::hdfe0b9b278f6a2d4
6: 0x7382d1cfa68f - std[e857fc88149b8bb7]::panicking::update_hook::<alloc[14f3b7019767b1ae]::boxed::Box<rustc_driver_impl[12a88fbe870fdaff]::install_ice_hook::{closure#0}>>::{closure#0}
7: 0x7382d2c797f8 - std::panicking::rust_panic_with_hook::h80214b0734ae1ad1
8: 0x7382d1d345b1 - std[e857fc88149b8bb7]::panicking::begin_panic::<rustc_errors[9857333b1cca239b]::ExplicitBug>::{closure#0}
9: 0x7382d1d275e6 - std[e857fc88149b8bb7]::sys::backtrace::__rust_end_short_backtrace::<std[e857fc88149b8bb7]::panicking::begin_panic<rustc_errors[9857333b1cca239b]::ExplicitBug>::{closure#0}, !>
10: 0x7382d1d22e20 - std[e857fc88149b8bb7]::panicking::begin_panic::<rustc_errors[9857333b1cca239b]::ExplicitBug>
11: 0x7382d1d3e061 - <rustc_errors[9857333b1cca239b]::diagnostic::BugAbort as rustc_errors[9857333b1cca239b]::diagnostic::EmissionGuarantee>::emit_producing_guarantee
12: 0x7382d099d3a0 - <rustc_errors[9857333b1cca239b]::DiagCtxtHandle>::span_bug::<rustc_span[e1ff7264637c5d63]::span_encoding::Span, alloc[14f3b7019767b1ae]::string::String>
13: 0x7382d1f93647 - rustc_middle[d8a02af54bfa0dde]::util::bug::opt_span_bug_fmt::<rustc_span[e1ff7264637c5d63]::span_encoding::Span>::{closure#0}
14: 0x7382d1f9670a - rustc_middle[d8a02af54bfa0dde]::ty::context::tls::with_opt::<rustc_middle[d8a02af54bfa0dde]::util::bug::opt_span_bug_fmt<rustc_span[e1ff7264637c5d63]::span_encoding::Span>::{closure#0}, !>::{closure#0}
15: 0x7382d1f44c3b - rustc_middle[d8a02af54bfa0dde]::ty::context::tls::with_context_opt::<rustc_middle[d8a02af54bfa0dde]::ty::context::tls::with_opt<rustc_middle[d8a02af54bfa0dde]::util::bug::opt_span_bug_fmt<rustc_span[e1ff7264637c5d63]::span_encoding::Span>::{closure#0}, !>::{closure#0}, !>
16: 0x7382d008fd97 - rustc_middle[d8a02af54bfa0dde]::util::bug::span_bug_fmt::<rustc_span[e1ff7264637c5d63]::span_encoding::Span>
17: 0x7382d37c3fe9 - <rustc_hir_typeck[4162f95293710ac]::typeck_root_ctxt::TypeckRootCtxt>::register_predicate
18: 0x7382d378ec7b - rustc_hir_typeck[4162f95293710ac]::check::check_fn
19: 0x7382d3783393 - rustc_hir_typeck[4162f95293710ac]::typeck
20: 0x7382d3782d0f - rustc_query_impl[6f041a62200b4f1f]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[6f041a62200b4f1f]::query_impl::typeck::dynamic_query::{closure#2}::{closure#0}, rustc_middle[d8a02af54bfa0dde]::query::erase::Erased<[u8; 8usize]>>
21: 0x7382d39044fd - rustc_query_system[6bc689bd08eb534a]::query::plumbing::try_execute_query::<rustc_query_impl[6f041a62200b4f1f]::DynamicConfig<rustc_query_system[6bc689bd08eb534a]::query::caches::VecCache<rustc_span[e1ff7264637c5d63]::def_id::LocalDefId, rustc_middle[d8a02af54bfa0dde]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[6f041a62200b4f1f]::plumbing::QueryCtxt, false>
22: 0x7382d390324d - rustc_query_impl[6f041a62200b4f1f]::query_impl::typeck::get_query_non_incr::__rust_end_short_backtrace
23: 0x7382d3d1207f - rustc_middle[d8a02af54bfa0dde]::query::plumbing::query_get_at::<rustc_query_system[6bc689bd08eb534a]::query::caches::VecCache<rustc_span[e1ff7264637c5d63]::def_id::LocalDefId, rustc_middle[d8a02af54bfa0dde]::query::erase::Erased<[u8; 8usize]>>>
24: 0x7382d43a26eb - rustc_hir_analysis[d00687496dda5c67]::collect::type_of::type_of_opaque
25: 0x7382d43a2625 - rustc_query_impl[6f041a62200b4f1f]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[6f041a62200b4f1f]::query_impl::type_of_opaque::dynamic_query::{closure#2}::{closure#0}, rustc_middle[d8a02af54bfa0dde]::query::erase::Erased<[u8; 8usize]>>
26: 0x7382d34304ae - rustc_query_system[6bc689bd08eb534a]::query::plumbing::try_execute_query::<rustc_query_impl[6f041a62200b4f1f]::DynamicConfig<rustc_query_system[6bc689bd08eb534a]::query::caches::DefIdCache<rustc_middle[d8a02af54bfa0dde]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[6f041a62200b4f1f]::plumbing::QueryCtxt, false>
27: 0x7382d45d6cf6 - rustc_query_impl[6f041a62200b4f1f]::query_impl::type_of_opaque::get_query_non_incr::__rust_end_short_backtrace
28: 0x7382d3cfc202 - rustc_middle[d8a02af54bfa0dde]::query::plumbing::query_get_at::<rustc_query_system[6bc689bd08eb534a]::query::caches::DefIdCache<rustc_middle[d8a02af54bfa0dde]::query::erase::Erased<[u8; 8usize]>>>
29: 0x7382d04d5785 - rustc_hir_analysis[d00687496dda5c67]::collect::type_of::type_of
30: 0x7382d34317b0 - rustc_query_impl[6f041a62200b4f1f]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[6f041a62200b4f1f]::query_impl::type_of::dynamic_query::{closure#2}::{closure#0}, rustc_middle[d8a02af54bfa0dde]::query::erase::Erased<[u8; 8usize]>>
31: 0x7382d34304ae - rustc_query_system[6bc689bd08eb534a]::query::plumbing::try_execute_query::<rustc_query_impl[6f041a62200b4f1f]::DynamicConfig<rustc_query_system[6bc689bd08eb534a]::query::caches::DefIdCache<rustc_middle[d8a02af54bfa0dde]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[6f041a62200b4f1f]::plumbing::QueryCtxt, false>
32: 0x7382d3430067 - rustc_query_impl[6f041a62200b4f1f]::query_impl::type_of::get_query_non_incr::__rust_end_short_backtrace
33: 0x7382d3cfc202 - rustc_middle[d8a02af54bfa0dde]::query::plumbing::query_get_at::<rustc_query_system[6bc689bd08eb534a]::query::caches::DefIdCache<rustc_middle[d8a02af54bfa0dde]::query::erase::Erased<[u8; 8usize]>>>
34: 0x7382d43acf90 - rustc_hir_analysis[d00687496dda5c67]::check::check::check_item_type
35: 0x7382d0383600 - rustc_hir_analysis[d00687496dda5c67]::check::wfcheck::check_well_formed
36: 0x7382d3bb103d - rustc_query_impl[6f041a62200b4f1f]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[6f041a62200b4f1f]::query_impl::check_well_formed::dynamic_query::{closure#2}::{closure#0}, rustc_middle[d8a02af54bfa0dde]::query::erase::Erased<[u8; 1usize]>>
37: 0x7382d3bb0794 - rustc_query_system[6bc689bd08eb534a]::query::plumbing::try_execute_query::<rustc_query_impl[6f041a62200b4f1f]::DynamicConfig<rustc_query_system[6bc689bd08eb534a]::query::caches::VecCache<rustc_span[e1ff7264637c5d63]::def_id::LocalDefId, rustc_middle[d8a02af54bfa0dde]::query::erase::Erased<[u8; 1usize]>>, false, false, false>, rustc_query_impl[6f041a62200b4f1f]::plumbing::QueryCtxt, false>
38: 0x7382d3bb0410 - rustc_query_impl[6f041a62200b4f1f]::query_impl::check_well_formed::get_query_non_incr::__rust_end_short_backtrace
39: 0x7382d3bb10bd - rustc_middle[d8a02af54bfa0dde]::query::plumbing::query_ensure_error_guaranteed::<rustc_query_system[6bc689bd08eb534a]::query::caches::VecCache<rustc_span[e1ff7264637c5d63]::def_id::LocalDefId, rustc_middle[d8a02af54bfa0dde]::query::erase::Erased<[u8; 1usize]>>, ()>
40: 0x7382d3bb167f - rustc_hir_analysis[d00687496dda5c67]::check::wfcheck::check_mod_type_wf
41: 0x7382d3bb10e5 - rustc_query_impl[6f041a62200b4f1f]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[6f041a62200b4f1f]::query_impl::check_mod_type_wf::dynamic_query::{closure#2}::{closure#0}, rustc_middle[d8a02af54bfa0dde]::query::erase::Erased<[u8; 1usize]>>
42: 0x7382d42d3afb - rustc_query_system[6bc689bd08eb534a]::query::plumbing::try_execute_query::<rustc_query_impl[6f041a62200b4f1f]::DynamicConfig<rustc_query_system[6bc689bd08eb534a]::query::caches::DefaultCache<rustc_span[e1ff7264637c5d63]::def_id::LocalModDefId, rustc_middle[d8a02af54bfa0dde]::query::erase::Erased<[u8; 1usize]>>, false, false, false>, rustc_query_impl[6f041a62200b4f1f]::plumbing::QueryCtxt, false>
43: 0x7382d42d38ad - rustc_query_impl[6f041a62200b4f1f]::query_impl::check_mod_type_wf::get_query_non_incr::__rust_end_short_backtrace
44: 0x7382d3900abb - rustc_hir_analysis[d00687496dda5c67]::check_crate
45: 0x7382d38fd817 - rustc_interface[bbaab2745c9b053b]::passes::run_required_analyses
46: 0x7382d429de1e - rustc_interface[bbaab2745c9b053b]::passes::analysis
47: 0x7382d429ddf1 - rustc_query_impl[6f041a62200b4f1f]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[6f041a62200b4f1f]::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle[d8a02af54bfa0dde]::query::erase::Erased<[u8; 1usize]>>
48: 0x7382d42e81ae - rustc_query_system[6bc689bd08eb534a]::query::plumbing::try_execute_query::<rustc_query_impl[6f041a62200b4f1f]::DynamicConfig<rustc_query_system[6bc689bd08eb534a]::query::caches::SingleCache<rustc_middle[d8a02af54bfa0dde]::query::erase::Erased<[u8; 1usize]>>, false, false, false>, rustc_query_impl[6f041a62200b4f1f]::plumbing::QueryCtxt, false>
49: 0x7382d42e7e8f - rustc_query_impl[6f041a62200b4f1f]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace
50: 0x7382d41aab5e - rustc_interface[bbaab2745c9b053b]::interface::run_compiler::<core[fdc7858511f3567b]::result::Result<(), rustc_span[e1ff7264637c5d63]::ErrorGuaranteed>, rustc_driver_impl[12a88fbe870fdaff]::run_compiler::{closure#0}>::{closure#1}
51: 0x7382d423fe54 - std[e857fc88149b8bb7]::sys::backtrace::__rust_begin_short_backtrace::<rustc_interface[bbaab2745c9b053b]::util::run_in_thread_with_globals<rustc_interface[bbaab2745c9b053b]::util::run_in_thread_pool_with_globals<rustc_interface[bbaab2745c9b053b]::interface::run_compiler<core[fdc7858511f3567b]::result::Result<(), rustc_span[e1ff7264637c5d63]::ErrorGuaranteed>, rustc_driver_impl[12a88fbe870fdaff]::run_compiler::{closure#0}>::{closure#1}, core[fdc7858511f3567b]::result::Result<(), rustc_span[e1ff7264637c5d63]::ErrorGuaranteed>>::{closure#0}, core[fdc7858511f3567b]::result::Result<(), rustc_span[e1ff7264637c5d63]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[fdc7858511f3567b]::result::Result<(), rustc_span[e1ff7264637c5d63]::ErrorGuaranteed>>
52: 0x7382d4240268 - <<std[e857fc88149b8bb7]::thread::Builder>::spawn_unchecked_<rustc_interface[bbaab2745c9b053b]::util::run_in_thread_with_globals<rustc_interface[bbaab2745c9b053b]::util::run_in_thread_pool_with_globals<rustc_interface[bbaab2745c9b053b]::interface::run_compiler<core[fdc7858511f3567b]::result::Result<(), rustc_span[e1ff7264637c5d63]::ErrorGuaranteed>, rustc_driver_impl[12a88fbe870fdaff]::run_compiler::{closure#0}>::{closure#1}, core[fdc7858511f3567b]::result::Result<(), rustc_span[e1ff7264637c5d63]::ErrorGuaranteed>>::{closure#0}, core[fdc7858511f3567b]::result::Result<(), rustc_span[e1ff7264637c5d63]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[fdc7858511f3567b]::result::Result<(), rustc_span[e1ff7264637c5d63]::ErrorGuaranteed>>::{closure#1} as core[fdc7858511f3567b]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
53: 0x7382d4240d2b - std::sys::pal::unix::thread::Thread::new::thread_start::hd84c48c307791fe8
54: 0x7382ce4a339d - <unknown>
55: 0x7382ce52849c - <unknown>
56: 0x0 - <unknown>
note: we would appreciate a bug report: https://github.com/rust-lang/rust/issues/new?labels=C-bug%2C+I-ICE%2C+T-compiler&template=ice.md
note: please make sure that you have updated to the latest nightly
note: rustc 1.84.0-nightly (9ce3675b4 2024-10-15) running on x86_64-unknown-linux-gnu
note: compiler flags: -Z unstable-options -Z dump-mir-dir=dir
query stack during panic:
#0 [typeck] type-checking `size_of_val`
#1 [type_of_opaque] computing type of opaque `size_of_val::{opaque#0}`
end of query stack
error: aborting due to 3 previous errors
For more information about this error, try `rustc --explain E0601`.